9973517 has 2 divisors, whose sum is σ = 9973518. Its totient is φ = 9973516.

The previous prime is 9973511. The next prime is 9973531. The reversal of 9973517 is 7153799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7214596 + 2758921 = 2686^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 9973517 - 2⁸ = 9973261 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9973511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986758 + 4986759.

It is an arithmetic number, because the mean of its divisors is an integer number (4986759).

Almost surely, 2^9973517 is an apocalyptic number.

It is an amenable number.

9973517 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973517 is an equidigital number, since it uses as much as digits as its factorization.

9973517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 41.

The square root of 9973517 is about 3158.0875542011. The cubic root of 9973517 is about 215.2531145526.

The spelling of 9973517 in words is "nine million, nine hundred seventy-three thousand, five hundred seventeen".